Astroflame Fire Resistant Batt
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Astroflame Fire Resistant Batt

From: £27.49 ex VAT
£32.99 inc VAT
Product Overview

Constructed from a mineral fibre core coated on both sides with Astroflame mastic, the Astroflame fire batt is specially designed to seal service penetrations in walls and floors. When the mastic coating is subjected to high temperatures it transforms into a hard ceramic that prevents the passage of fire, smoke and heat for up to 4 hours. Suitable for indoor use without additional protection, with a lifespan of over 25 years, and also providing acoustic and thermal insulation, the Astroflame batt has been tested and proven in a variety of construction materials including concrete, masonry, and plasterboard partitions.

  • 240 minute fire rating
  • Tested to BS 476 Part 20 & EN 1366 Part 3
  • Certifire approved
  • Thermal and acoustic insulation
  • Available in two versions:
    • 600x1200x50mm 140Kgm²
    • 600x1200x60mm 160Kgm²
  • Halogen and asbestos free - no toxic gases emitted when exposed to flame
  • Reduced smoke properties
  • Unaffected by fungus, moisture, oil, or vermin
  • Remains flexible between -5°C to +70°C
  • Not suitable for installations subject to regular structural movements
  • CE Marked
  • UL certified

Please note: Dust masks, eye protection and gloves should be worn when cutting. Cut edges should be sealed using Astroflame Coating to maintain integrity. Seal batt in place with Astroflame Intumescent Acoustic Mastic.

Technical Data

Technical Data

This is the technical data for the Astroflame Fire Resistant Batt.

Dimensions (LxWxD) 50mm: 1200 x 600 x 50mm
60mm: 1200 x 600 x 60mm
Density 50mm: 140kg/m³
60mm: 160kg/m³
Protection Level 4 hours
Thermal Conductivity 0.034 W/mK at 10°C
Air Permeability BS EN 1026: 600Pa - 100Pa 1.8/1.4 m³/h/m²
Water Vapour Permeability 3.08g/m²/24 hours
Acoustic Insulation BS EN 10140: 48dB
Maximum Size of Seal Wall: 5.76m²
Floor: 2.88m²
Lifespan over 25 years
Heat Ageing 336 hours: no defects at 40°C

Product Datasheets

The following datasheets are available for this product.

Pricing & Availability

Model Stock Price Weight
600x1200x60mm 160Kgm²
Product Code: AFFBATT60
Stock Level:
Available to order Expected dispatch: 19th Nov

£26.49 ex VAT

£31.79 inc VAT

600x1200x50mm 140Kgm²
Product Code: AFFBATT50
Stock Level:
Available to order Expected dispatch: 19th Nov

£27.49 ex VAT

£32.99 inc VAT


Customer Reviews

2 customers have rated this product and it has an overall rating of 5 out of 5

All our reviews are written by real customers that have purchased this product from us and are published without modification.

5 / 5 Stars

Reviewed by: DS

Easy to use and the results look great

Published on: 6th January 2017

5 / 5 Stars

Reviewed by: JM

Great Product!

Published on: 25th July 2016

Delivery Options

The following delivery options are available on this product.

Expedited Delivery

Delivered in 6 working days by DHL £6.50 ex VAT

Astroflame Fire Resistant Batt

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Looking for more information?

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Direct Telephone 01507 464152
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